body {
  font-family: Arial, sans-serif;
  background: #f8f8f8;
  padding: 40px;
  display: flex;
  justify-content: center;
}

.container {
  background: #fff;
  padding: 30px;
  max-width: 600px;
  width: 100%;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

textarea {
  width: 100%;
  height: 100px;
  padding: 10px;
  font-size: 14px;
  margin-bottom: 15px;
  resize: vertical;
}

button {
  padding: 10px 20px;
  font-size: 16px;
}

.result {
  margin-top: 20px;
  font-size: 24px;
  font-weight: bold;
  color: #333;
}